Tank-car valve



Dec; 15 1925- C. DE R. DOSKER TANK CAR VALVE Filed Nov. 12, 1921 Patented Dec. 15, 1925.

UNITED STATES coamrus nn nouns nosxnn, or cnrcaeo, ILLINOIS.

-. TANK-CAR VALVE.

.lpplication'flled November 12, 1921. Serial at. 514,572.

To all whom it may concern.

Be it known that I, CoRNrLIus or Rormr DosKER, a citizen of the United .States, residing in Chicago, in the county of Cook I and State of Illinois, have invented anew and useful Improvement in Tank-Car Valves, of which the following is a speci fication.

This invention relates to an improved outlet valve adapted particularly for use upon tank car-sand the like, though it will be understood that the invention is capable of other and more general adaptations.

The objects and advantages of my inven- 1 tion may be most clearly set forth,-it is believed,-when considered in connection with the type of outlet valve commonly employed u on tank cars in the past; In the type 0? valve referred to the outlet passage and portions of the valve project directl from the bottom of the tank and extend t rough the center sill of the car, the oil or other liquid content of the car .being received beneath said-sill into a receptacleor receiving pipe or hose connection. t w 1l1 be manifest that with the parts so positioned 'a'wreck or mishap to the car, which moves the sill relatively to the car body or shell, is likely to .shear oil the and mounting extending through said s ll, with resultant loss of the contents of the car. This difficulty has been frequently ex perienced and a principalflobject of my 1nvention is to overcome it by the provision of a valve and outlet passage positioned entiflely-above and out of the wayof. the car s1 A further object of the invention is the provision of an outlet valve readily operable from the outside of the car and without the necessity of removing the dome cover through which the normal type of valve is operated. Accidents have frequently resulted from the practice of removing the manhole or dome cover to permit openin of the valve by means of a valve rod w ich normally extends upwardly within the car, since cars used for trans orting oils and acids often contain ases llkel to exert great pressure upon'sai cover. t has been found necessary to permit such gases to escape before the cover could safely be removed and this involves considerable loss of time, which becomes unnecessary with the use of my invention.

parts of the valve .pro

comprises oppositel Still another object of the invention is the provision 'of' a simple valve member easily operable and so positioned that even if the projecting portions of the mounting should be sheared off, which is'unlikely when they are located in the position which I have-indicated, the valve member will not be une seated.

Another and important object of my invention is the provision of outlet' valve mechanism'having a plurality of outlet passages and independentvalves in each passage whereby tie contents may be removed at a plurality of points or very quickly in case each outlet is used.

Numerous other objects and advantages of the invention will be apparent as it is better understood from thelfollowing description, which, takenin connection with the accompanyingdrawings, discloses a preferred em odiment thereof. 1

Referring-to the drawings,

Figure .1 is a transverse section of the lower part of a tank car u on which my invention is employed, a portion of the valve mechanism being shown in section;

Fig. 2 is a'sectional view taken substantiallyon the line 2-2 of 1; and

Fig. 3 is'a perspective view of the valve porr the drawings, which illustrate a 1preferred embodiment. of my invention, I

ave shown the lower portion 11 of a car tank or shell, a valve mounting generally indicated by the reference numeral 12 and the center sill .13 of an ordinary car. The sill 13 is secured by bolts 14 to side braces 15 and it will be understood that the tank 11 is su ported at suitable points from said sill. e mounting 12 is of generally oval shape and is secured to the shell by bolts 16, said shell being cut away at 17 and'the oplening completely closed by said mounting. T e outlet and valve structure is duplicated at each side of the mounting and a description of one unit will suflice for both. The mounting is preferably an integral casting and disposed valve seats 18 having horizonta apertures 19 which are interiorly screw threaded as at 21. A

valve member 22 is seated in the aperture 19 by a screw threaded en agement with the threaded portion 21. e valve member 22 com rises a head 23 which is beveled at 24, a cy indrical threaded body portion 25 and threaded guides 26, of which four are provided in the present instance. The

head and body parts of the valve are preferably integrally formed, though it will be manifest that the head might be a separate piece secured in any approved manner to the body. Threads 27 on the valve are pitched to provide firm engagement with the threaded portion 21 of the valve seat, and it will be apparent that said valve cannot be dislodged except by rotary movement thereof In the center of the valve body is a preferably square aperture 28 which is ada ted to receive a square rod 29 inserted t rough the mounting from the outside and operable to open and close the valve by means of a .wrench or other suitable instrument applied to the outer end 31 of said rod WllICh is readily accessible at all times. It will be noted that the rod 29 is rotatable in fixed longitudinal position and that the valve moves in or out thereon according to the direction of rotation.

I have provided in the center of the f mounting and extendin upwardly into the car a stop block 32 having a threaded projection 33 screwed'tightly into an aperture 34 in the bottom-portion 35 of said mounting. A-projection 36 is provided upon the. valve to abutt against the block 32 when said valve is fully open, though of course, this may be omitted if desired. The rod end against the'packing gland 37 and at the other end against the recessed portion 38 of the mounting. In this manner'the rod is secured against 'longitudinal movemen while left free for rotation and ample se-.

curity is provided against leaka e at the point at which said rod is inserte While I have found the use of the rod 29 or a similar device to be entirely satisfactory-for opening and closing the valve it should be noted that other instrumentalities, such as a square wrench might be insertedwhen it is desired to operate the valve and employed with almost equal facility. Y

The mounting is provided with projections 42 extending from the car at an angle with respect to the vertical and provided with an outlet passage 43 in communication with the aperture 19. When the valve is opened the contents of the car may fiow through the grooves or passages 44 therein and out through the passage 43 into a re-- ceptacle or suitable conveying connection. A screw cap 45 is provided to close the passage 43 and to protect the same from foreign assaeae matter and may be readily removed and applied as occasion may demand. Since the structure just describedis duplicated on the opposite side of the car it will appear that unloading may take place with much greater speed than when only a single outlet is provided, and furthermore, maybe accomplished at either side of the car, which frequently is of very great advantage.

I have provided a punctured lug or projection 46 upon the outer part 38 of the mounting and the rod 29 is preferably apertured' as at47 to permit the positioning of' a car seal 48 whereby to guard against un authorized opening of the valve.

With the structure which I have shown and described, the difficulties commonly ex-' perienced with other types of valves are believed to be fully overcome since no part of my structure can be affected by abnormal movement 'of the car sill; the valve is 'so seated that even if the projecting portions I of the mounting should be sheared off or distortedthe outlet passage would not be opened; and the dangers and diiiiculties incident to the, opening of the usual type of valve from the inside of the car do not and capable .of inexpensive manufacture since the mounting may be integrally cast and none of the parts need be made of expensive material. necessary since breakage is not likely 'to 'occur, and I therefore effect very material economy both in the matter of material and in-the time involved in opening and emptymg cars equipped with my invention.

It is thong t that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the from the spirit an scope of the invention or sacrificing all of its material advantages, theform hereinbefore described being merel a preferred embodiment thereof.

;1. A valve for tank cars and the like, comprising a mounting secured in the bottom Replacement is seldom parts without departingof a car and having a laterally extending outlet aperture, a valve member having screw threaded engagement in the aperture of said mounting, and being'horizontally operable therein, and stop means positioned 2. Outlet mechanism for tank cars and the like, comprising a mounting adaptedto be secured in the lower part of the -icar .inwardly from said valve and limiting inward movement thereof." 1

like, comprising a mounting positioned above the sill of the car and having a side.- wise extending outlet passage and an interior grooved valve member having screw threaded engagement with said mounting, and being so positioned as to be unaffected by force applied to the projecting portions of said mounting.

4. A valve for tanks, drums and the like,

"comprising an internally screw-threaded housing, a valve member provided with a head disposed within thetauk or drum and rhdially disposed threaded guides having outlet passages therebetween and having screw-threaded engagement in said housing, and means insertable from the exterior of the tank, or drum, for rotating said valve member to move the head thereofto and from seated position in said housing.

5. A valve for tank cars, drums, or the like, comprising a casing member attachable to said tank car, drum, or the like and communicatin with the interior thereof, a valve 'member is osed within said casing and arranged wel inwardly from the outer end thereof, thereby to rotect it against external forces upon t e easing, .said casing being internally screw-threaded and sai 'valve member having radial flanges threaded to cooperate with the threads of the casing,

and means insertable from the exterior of the casing and engagable with said valve member to rotate and thereby open andclose the same.

6. A valve for tank cars, drums, or the like, comprising a casing member attachable to said tank car, drum, or the like and communicating with the interior thereof, a valve-member disposed within'said casing and arranged well inwardly from the outer end thereof, thereby to protect it against external forces upon the casin said casin being internally, screw-threa ed and sai valve member having radial flanges threaded to cooperate with the threads of the casing, and an operating member insertable into said casing and into a socket provided in said valve member, rotation of said operatv ing member producing endwise movement ofv the valve member to open and close the same. I p

7. A valve for tank cars, drums, or the like, comprising a single member providing a valve casing and an outlet passage, the interior of said casing being threaded and having a valve seat at the inner end thereof, a valve member having a head engageable with'said seat, and a body having threads adapted to cooperate with the internal threads of said casing to move the valve lengthwise, said body having outlet pas sages therein and being formed to cooperate with anoperating member inserted from the exterior of .the casing to rotate and thereby open and close said valve by endwise movement thereof.

8. A valve for tank cars, drums, or the like, comprising a single member providing a valve casing and an outlet passage, the interior of said casing'beingthrea'ded and having a valve seat atthe inner end thereof, a valve member having a head engageable with said seat, a body having threads adapted to cooperate with the internal threads of said casing to move the valve lengthwise,

1 said body having outlet passages therein and being formed to cooperate with an operating member inserted from the exterior of the casing to rotate and thereby open and close'said valve by endwise movement thereof, and means for limiting the opening movement of said valve.

9. A valvefor tank cars, drums, or the like, comprising a mounting attachable 'to the body of the tank and having parts extending through an opening provided in the latter, said mounting having a valve casing, an outlet passage extending laterally thereof, a valve threaded into saidcasing and disposed well inwardly from said outlet passage, said valve being operable by a separate member engageable therewith when inserted laterally of said mounting and lengthwise of said casing. I

10. A valve for tank cars, drums, or the like, comprising a mounting attachable to the'wall ofthe tank, or drum, and arran eable over an opening in the latter, there y forming a part of the wall, said mounting being formed to provide a' laterally extending valve casing and an outlet passage disposed at the side and above the sill of the car, and a valve member disposed within. said casing and operable from the exterior of said mounting to open and close the same.

11. A valve for tank cars, drums, or the like, comprising a mounting attachable to the wall of the tank, or drum, and arrangeable over an opening in the latter, therebyw formin apart of the wall, said mounting being ormed to. provide valve casings and outlet passages at opposite sides thereof, and separate valve members arranged respectively in said casings, said valve memizo bers being operable from the exterior of said mounting.

12. A valve for tank cars, drums, or the;

wall, saidf 'mounting mounting and said casings extending'horig separate valve members arranged respectively in said casings, said valve members being operable from the exterior of said zontally when the mounting is attached to the bottom of a tank ear or the like, the outlet passages being then arranged to avoid the sill of the car.

13. A valve for tank cars, drums, or the like, comprising a mounting attachable to the Wall of the tank or drum and arrangeable over an opening in the latter, thereby meams forming a part of the wall, said mounting being formed to provide a valve casing and outlet passage, and a valve member disposed within said casing and operable from the exterior of said mounting to open and close the same and said casing extending horizontally when the mounting is attached to the bottom of a tank car or the like, the

outlet passage being then arranged to avoid the sill of the car.

CORNELIUS 13E RONDE DOSKER. 

